For testing purposes, I would like Chrome to ignore my CSS's font source priority: The priority is "first local versions, and if not found locally, then load from url":
/* sans latin */
@font-face {
font-family: 'Source Sans Pro';
font-style: normal;
font-weight: 400;
font-display: swap;
src: local('Source Sans Pro Regular'), local('SourceSansPro-Regular'), url('font/source/sans-latin.woff2') format('woff2'), url('font/source/sans-all.woff') format('woff');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
As my development computer has "Source Sans Pro Regular" and/or "SourceSansPro-Regular" installed, Chrome always uses these local font versions. But I want to test what happens when those local versions don't exist, thereby making Chrome use the url version.
I'm aware of Can I force the browser to use CSS @font-face instead of font installed on system?, but with this question here I'm looking for a development switch or similar.